@article{ref1,
title="Bicycle helmets and accidental asphyxia in childhood",
journal="Medical journal of Australia",
year="2011",
author="Byard, Roger W. and Cala, Allan and Ritchey, Donald and Woodford, Noel",
volume="194",
number="1",
pages="49-49",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}